1. increase
2. decrease
3. be independent
4. may increase or decrease depending on other factors
decrease
1. 2-stroke engine can run in any direction
2. In 4-stroke engine, a power stroke is obtained in 4-strokes
3. thermal efficiency of 4-strokc engine is more due to positive scavenging
4. petrol engines occupy more space than diesel engines for same power output.
petrol engines occupy more space than diesel engines for same power output.
1. homogeneous
2. heterogeneous
3. both (a) and (b)
4. laminar
heterogeneous
1. less than 2000
2. between 2000 and 4000
3. more than 4000
4. less than 4000
more than 4000
1. mass
2. momentum
3. energy
4. work
energy
1. 5-10 kg/cm2
2. 20-25 kg/cm2
3. 60-80 kg/cm2
4. 90-130 kg/cm2
90-130 kg/cm2
1. 0.15 kg
2. 0.2 kg
3. 0.25 kg
4. 0.3 kg
0.2 kg
1. 1 valve
2. 2 valves
3. 3 valves
4. 4 valves
3 valves
1. first a mild explosion followed by a bi explosion
2. first a big explosion followed by a mil explosion
3. both mild and big explosions occur simultaneously
4. never occurs
first a mild explosion followed by a bi explosion
1. leaking piston rings
2. use of thick head gasket
3. clogged air-inlet slots
4. all of the above.
all of the above.